Xavier Ouellet gave Canada a 1-0 lead with a power-play goal 3:26 into the game.

Ryan Nugent-Hopkins wore a cape to his post-game interviews, which was fitting, because he was Canada's Superman during its tournament-opening win Wednesday.

Nugent-Hopkins made the most of his World Junior Championship debut, scoring a goal and adding four assists as Canada opened play at the 2013 IIHF World Junior Championship with a 9-3 rout of Germany in Group B play at Ufa Arena.

Nugent-Hopkins had a hand in Canada's first four goals, and combined with linemates Jonathan Huberdeau and Mark Scheifele to total 10 points. Huberdeau had a goal and two assists, while Scheifele had a pair of goals.

"We knew all three of those players are at an NHL level when it comes to their ability and mindset," Canada coach Steve Spott told TSN. "It's one of those things you hope it works out because Mark is playing out of his natural position [on the wing]. Ultimately I thought all three guys would be on the same page mentally because they're all so smart. Mark has adjusted well to the wing. Hopefully they can keep that going."

They should be able to, especially if Nugent-Hopkins keeps his play at such a high level.

"Ultimately you need your best players to be your best players in a tournament like this," Spott said. "Ryan is such a humble young man and to see him come out tonight and lead our team offensively along with Mark Scheifele and Jonathan Huberdeau, I think that speaks volumes for our hockey club because we're going to need that line to be great moving forward."

Nugent-Hopkins was getting his first chance in the World Juniors after being one of the final cuts from the 2011 team, and spending last season in the NHL. He was sporting a black Hockey Canada cape after the game, something he said the coaches will award to the best player from each game.

"I didn't know what to expect coming out," Nugent-Hopkins told TSN. "But the past couple [exhibition] games, our line really found some chemistry at the end of the Sweden game. We came out hard tonight and it paid off for us."

Canada led 2-1 after one period, but scored four straight goals in the first 13:48 of the second to blow the game open.

Ryan Strome had a goal and two assists for Canada, top 2013 NHL Draft prospect Jonathan Drouin had a goal and an assist, and Brett Ritchie added a pair of assists. Goaltender Malcolm Subban stopped 25 of 28 shots.

Three of the four lines contributed at least one goal, and Spott believes that kind of balanced scoring is what his team will need as it progresses through the tournament.

"When [Lightning GM] Steve Yzerman came and met with our hockey club, he said the top lines in this tournament can sometimes offset each other and the advantage Canada has is the depth of their lineup and we'll need that depth moving forward. Ryan's line will be counted on, but ultimately our depth with Strome, and [Boone] Jenner and [Nathan] MacKinnon, those guys are going to have to be great, as well."

Xavier Ouellet gave Canada a 1-0 lead with a power-play goal 3:26 into the game when his centering pass bounced off a German skater and past Trautmann, and Nugent-Hopkins made it 2-0 when he finished a give-and-go with Huberdeau at 9:36.

Germany got a power-play goal with 58.9 seconds left in the first, but Canada wasted little time stealing back momentum in the second, as Scheifele started a shorthanded rush, then waited in front of the net as Nugent-Hopkins tipped a puck from behind the net back to him for a goal that made it 3-1 at 2:18 of the second.

Dougie Hamilton fed a cutting Huberdeau for a power-play goal at 4:24 to make it 4-1, and then goals 1:26 apart by Ty Rattie and Strome midway through the period made it 6-1 Canada.

Germany got a pair of goals later in the period from Pfoderl and Latta to make it 6-3, but Scheifele's goal with two seconds left in the period made it 7-3 after 40 minutes.

Drouin and Tyler Wotherspoon had goals in the third to cap the scoring.

Canada is off until Friday, when it plays Slovakia (4:30 a.m. ET, NHLN-US, TSN). Germany returns Thursday to skate against the United States (9 a.m. ET, NHLN-US).

In the other game from Group B, host Russia faced Slovakia.

In Group A action at the Ufa Sports Palace, Miro Aaltonen had two goals and an assist as Finland topped Latvia 5-1.

It was a 1-1 game midway through the first when Aaltonen scored off a set-up by fellow 2013 NHL Draft prospect Rasmus Ristolainen at 12:23 of the period. Aaltonen added a power-play goal 15:27 to make it 3-1, and Finland cruised from there.

Ristolainen, No. 2 among Finnish skaters in NHL Central Scouting's preliminary ranking of players for this year's draft, closed the scoring with a goal in the final minute of the second period.

In the other Group A game, Sweden opened defense of its gold medal by scoring a pair of power-play goals in the first 3:48 of the game en route to a 4-1 defeat of the Czech Republic.

Sebastian Collberg and top 2013 NHL Draft prospect Elias Lindholm took advantage of undisciplined play by the Czechs early, and Filip Sandberg scored shorthanded 3:03 into the second to make it 3-0. Team captain Filip Forsberg's goal in the third, to make it 4-0, was the only one Sweden scored at even strength.